Home / 20,621.55-28,438.98-17,441.52

Finding the Fourth Proportional to 20,621.55, 28,438.98 and 17,441.52

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Solution

The fourth proportional to 20,621.55, 28,438.98 and 17,441.52 is: 24,053.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,621.55 : 28,438.98 = 17,441.52 : x
  2. Step 2: Convert to fraction form
    20,621.55/28,438.98 = 17,441.52/x
  3. Step 3: Cross multiply
    20,621.55x = 28,438.98 × 17,441.52
  4. Step 4: Simplify right side
    20,621.55x = 496,019,038.45
  5. Step 5: Solve for x
    x = 496,019,038.45/20,621.55
  6. Step 6: Final answer
    x = 24,053.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.